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openkal-linux 0.26.2: the implementation on i386 (openkal 0.25.1, clause 5.5; design K7). No interface changes; x86_64 and aarch64 call the same system calls as before.

i386

Part	Change
gate and numbers (src/sys.h)	int $0x80, the sixth argument in ebp; i386's own table. Where a call has a 64-bit time form, the name stands for it (clock_gettime64, clock_getres_time64, ppoll_time64, futex_time64, utimensat_time64).
calls whose arguments differ	functions every caller uses on every architecture: okl::openat (O_LARGEFILE on i386), fstat/fstatat (via statx on i386: stat64's times are 32-bit), fstatfs (statfs64), mmap (mmap2, pages), lseek (_llseek), pread/pwrite (pread64 with the position in two words), ftruncate (ftruncate64), nanosleep (clock_nanosleep_time64). The common numbers are -1 on i386, so a call that bypassed them fails instead of truncating a position.
records	kflock without the padding (flock64 aligns positions to 4); kstat filled from statx; ELF32 program headers for the thread-local image and for the fault report's symbol lookup.
thread pointer	set_thread_area, %gs; clone with CLONE_SETTLS takes a user_desc; __okl_clone and _start for i386; the fault report reads i386's ucontext.
handles	width-aware: 17 bits of descriptor and 15 of generation on a 32-bit word (src/handle.h); a program's handle: kind in bits 30-31, number in 0-21, an observed program's start in 22-29, an opened program's descriptor (its number from /proc/self/fdinfo).
vDSO	not read on i386 (ELF32, 32-bit records); the 64-bit clock_gettime64 is called.

Duplicates converged (P17)

rt_sigaction's record was declared three times with an unsigned long mask (half of i386's 64-bit set, and the size the call is told was refused there); one okl::k_sigaction with a 64-bit mask now. The return from a handler was written twice (observe.cpp, process.cpp); one okl_signal_return.

Verification

• tools/word32-check.sh (new, and a step of the CI job's llvm leg): builds src/*.cpp standalone for i386 with -Werror, links tests/word32/runs.cpp with ld.lld, runs it: a pointer is 4 bytes; a file is written, read, sized and sought at 5 GiB; a task with its own thread-local value is started and joined; a 20 ms sleep through the 64-bit clock. Local: all held.
• x86_64: the specification's conformance suite (run-conformance.sh openkal-linux . full): 261 held, 0 did not hold; mcpp test: 22 passed.
• The full conformance suite for i686 runs where the family's C library and C++ runtime are built for i386 (openkal-musl, openkal-llvm-runtime, openkal-platform).